Chrysanthemum plant named ‘Yotahoe’

ABSTRACT

A new and distinct cultivar of  Chrysanthemum  plant named ‘Yotahoe’, characterized by its uniform and outwardly spreading plant habit; strong and freely branching growth habit; dark green-colored foliage; uniform flowering response and habit; typically grown as a spray-type; early flowering habit; daisy-type inflorescences with elongated oblong-shaped ray florets; white-colored ray florets; and good postproduction longevity with plants maintaining good substance and color for about three weeks in an interior environment.

Botanical classification/cultivar designation: Chrysanthemum×morifolium cultivar Yotahoe.

BACKGROUND OF THE INVENTION

The present Invention relates to a new and distinct cultivar of Chrysanthemum plant, botanically known as Chrysanthemum×morifolium and hereinafter referred to by the name ‘Yotahoe’.

The new Chrysanthemum is a product of a planned breeding program conducted by the Inventor in Salinas, Calif. and Fort Myers, Fla. The objective of the program is to create or discover new potted Chrysanthemum cultivars that are suitable for year-round production with uniform plant growth habit, good vigor and strong branching habit; numerous inflorescences, desirable inflorescence form and floret colors, fast and uniform flowering response, and good postproduction longevity.

The new Chrysanthemum originated from a cross-pollination made by the Inventor in May, 1998, in Salinas, Calif., of a proprietary Chrysanthemum seedling selection, not patented, as the female, or seed, parent with a proprietary Chrysanthemum seedling selection identified as code number YB-4422, not patented, as the male, or pollen, parent. The new Chrysanthemum was discovered and selected by the Inventor in March, 1999, as a single flowering plant from within the resulting progeny of the stated cross-pollination grown in a controlled environment in Fort Myers, Fla.

The selection of this plant was based on its uniform plant growth habit, good vigor and strong branching habit, numerous inflorescences, desirable inflorescence form and floret colors, fast and uniform flowering response, and good postproduction longevity.

Asexual reproduction of the new Chrysanthemum by vegetative tip cuttings was first conducted in Fort Myers, Fla. in Jun, 1999. Asexual reproduction by cuttings has shown that the unique features of this new Chrysanthemum are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

The cultivar Yotahoe has not been observed under all possible environmental conditions. The phenotype may vary somewhat with variations in environment such as temperature, daylength, and/or light level, without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Yotahoe’. These characteristics in combination distinguish ‘Yotahoe’ as a new and distinct Chrysanthemum:

-   -   1. Uniform and outwardly spreading plant habit.     -   2. Strong and freely branching growth habit.     -   3. Dark green-colored foliage.     -   4. Uniform flowering response and habit.     -   5. Typically grown as a spray-type.     -   6. Early flowering, eight week response time.     -   7. Daisy-type inflorescences with elongated oblong-shaped ray         florets.     -   8. White-colored ray florets.     -   9. Good postproduction longevity with plants maintaining good         substance and color for about three weeks in an interior         environment.

Plants of the new Chrysanthemum can be compared to plants of the female parent selection. Plants of the new Chrysanthemum differ from plants of the female parent selection primarily in ray floret coloration as plants of the female parent selection have light pink-colored ray florets.

Plants of the new Chrysanthemum can be compared to plants of the male parent selection. Plants of the new Chrysanthemum differ from plants of the male parent selection primarily in inflorescence form and ray floret coloration as plants of the male parent selection have anemone-type inflorescences with yellow-colored ray florets.

Plants of the new Chrysanthemum can be compared to plants of the cultivar Shasta, disclosed in U.S. Plant Pat. No. 9,314. In side-by-side comparisons conducted in Fort Myers, Fla., plants of the new Chrysanthemum differed from plants of the cultivar Shasta in the following characteristics:

-   -   1. Plants of the new Chrysanthemum were taller than plants of         the cultivar Shasta.     -   2. Plants of the new Chrysanthemum were not as outwardly         spreading as plants of the cultivar Shasta.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying colored photographs illustrate the overall appearance of the new Chrysanthemum showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photographs may differ from the color values cited in the detailed botanical description which accurately describe the colors of the new Chrysanthemum.

The photograph of the first sheet comprises a side perspective view of typical flowering plants of ‘Yotahoe’ grown as spray-types.

The photograph on the second sheet comprises a close-up view of typical inflorescences of ‘Yotahoe’ grown as spray-types.

DETAILED BOTANICAL DESCRIPTION

In the following description, color references are made to The Royal Horticultural Society Colour Chart, 1995 Edition, except where general terms of ordinary dictionary significance are used. The aforementioned photographs, following observations and measurements describe plants grown and flowered during the autumn in Salinas, Calif., in a fiberglass-covered greenhouse and under conditions which approximate those generally used in commercial potted Chrysanthemum production. During the production of these plants, the following conditions were measured: day temperatures, 21 to 27° C.; night temperatures, 17 to 19° C.; and light levels, 5,000 to 6,000 foot-candles. Four unrooted cuttings were directly stuck in 15-cm containers, exposed to long day/short night conditions, and pinched once about two weeks later. At the time of the pinch, the photoinductive short day/long night treatments were initiated. Plants used for the description were grown in spray-types. Measurements and numerical values represent averages of typical flowering plants.

-   Botanical classification: Chrysanthemum×morifolium cultivar Yotahoe. -   Commercial classification: Daisy-type potted Chrysanthemum. -   Parentage:     -   -   Female, or seed, parent.—Proprietary             Chrysanthemum×morifolium seedling selection, not patented.         -   Male, or pollen, parent.—Proprietary             Chrysanthemum×morifolium seedling selection identified as             code number YB-4422, not patented. -   Propagation:     -   -   Type.—Terminal tip cuttings.         -   Time to initiate roots.—About four days at 21° C.         -   Time to produce a rooted cutting.—About ten days at 21° C.         -   Root description.—White, close to 155D; fibrous.         -   Rooting habit.—Freely branching; moderately dense. -   Plant description:     -   -   Appearance.—Herbaceous daisy-type potted Chrysanthemum that             is typically grown as a spray-type. Upright with lateral             branches outwardly spreading; uniformly mounded crown.             Strong and freely branching growth habit; about four lateral             branches develop after removal of terminal apex (pinching);             dense and full plants.         -   Plant height.—About 31 cm.         -   Plant width.—About 42 cm.         -   Lateral branches.—Length: About 24.5 cm. Diameter: About             5 mm. Internode length: About 2 cm. Strength: Strong.             Texture: Pubescent. Color: Darker green than 144A.         -   Foliage description.—Arrangement: Alternate; simple. Length:             About 5.1 cm. Width: About 4.5 cm. Apex: Mucronate. Base:             Mostly truncate. Margin: Palmately lobed, sinuses between             lateral lobes mostly divergent. Texture, upper and lower             surfaces: Pubescent. Color: Developing foliage, upper             surface: Close to 147A. Developing foliage, lower surface:             Close to 147B. Fully expanded foliage, upper surface: More             green than 147A. Fully expanded foliage, lower surface:             Close to 147B. Venation, upper surface: Close to 147A to             147B. Venation, lower surface: Close to 147B. Petiole             length: About 2.1 cm. Petiole diameter: About 2.5 mm.             Petiole color, upper surface: Close to 147A to 147B. Petiole             color, lower surface: Close to 147B. -   Inflorescence description:     -   -   Appearance.—Daisy-type inflorescence form with elongated             oblong-shaped ray florets. Inflorescences borne on terminals             above foliage. Disk and ray florets develop acropetally on a             capitulum. Inflorescences not fragrant. Plants typically             grown as spray-types.         -   Flowering response.—Under natural conditions, plants flower             in the autumn/winter in the Northern Hemisphere. At other             times of the year, inflorescence initiation and development             can be induced under short day/long night conditions (at             least 13.5 hours of darkness). Early flowering; plants             exposed to two weeks of long day/short night conditions             followed by photoinductive short day/long night conditions             flower about eight weeks later.         -   Postproduction longevity.—Inflorescences maintain good color             and substance for about three weeks in an interior             environment.         -   Quantity of inflorescences.—Grown as a spray-type, about             five or six inflorescences develop per lateral branch.         -   Inflorescence bud.—Height: About 6 mm. Diameter: About 8 mm.             Shape: Oblate. Color: Close to 146A.         -   Inflorescence diameter.—About 8.3 cm.         -   Inflorescence depth (height).—About 1.75 cm.         -   Diameter of disc.—About 1.75 cm.         -   Receptacle diameter.—About 8 mm.         -   Ray florets.—Shape: Elongated oblong. Orientation: Initially             upright, eventually perpendicular to the peduncle. Aspect:             Mostly straight. Length: About 4.1 cm. Width: About 1.3 cm.             Corolla tube length: About 4 mm. Corolla tube diameter:             About 2.5 mm. Apex: Acute or emarginate. Base: Fused into a             corolla tube. Margin: Entire. Texture, upper and lower             surfaces: Smooth, glabrous; satiny. Number of ray florets             per inflorescence: About 22 arranged in about two whorls.             Color: When opening and fully opened, upper surface: Close             to 155D. When opening and fully opened, lower surface: Close             to 155D.         -   Disc florets.—Arrangement: Massed at center of receptacle.             Shape: Tubular. Apex: Five-pointed. Length: About 7.5 mm.             Diameter, apex: About 2.5 mm. Diameter, base: About 1 mm.             Number of disc florets per inflorescence: About 205. Color:             Immature: Close to 144A. Mature, apex: 9A. Mature,             mid-section: Close to 145C. Mature, base: Close to 155D.         -   Phyllaries.—Quantity per inflorescence: About 24. Length:             About 7 mm. Width: About 3 mm. Shape: Lanceolate. Apex:             Acute. Base: Truncate. Margin: Entire. Texture, upper             surface: Waxy, smooth. Texture, lower surface: Pubescent.             Color, upper surface: More green than 144A. Color, lower             surface: Close to 146A.         -   Peduncles.—Length, terminal peduncle: About 6.5 cm. Length,             fourth peduncle: About 9.8 cm. Diameter: About 2.5 mm.             Strength: Strong. Texture: Pubescent. Color: Close to 144A             to 146A.         -   Reproductive organs.—Androecium: Present on disc florets             only. Anther color: Close to 12A. Pollen amount: None             observed. Gynoecium: Present on both ray and disc florets.             Style color: Close to 144B to 144C. Stigma color: Close to             9A.         -   Seed/fruit.—Seed and fruit production has not been observed. -   Disease/pest resistance: Resistance to pathogens and pests common to     Chrysanthemums has not been observed on plants grown under     commercial greenhouse conditions. 

1. A new and distinct cultivar of Chrysanthemum plant named ‘Yotahoe’, as illustrated and described. 